<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body{
            background-color: black;
        }
        .box{
            width: 450px;
            height: 450px;
            background-color: #F57923;
            margin: 30px auto;
            border-radius: 150px;
        }
        .inner{
            width: 140px;
            height: 200px;
            background-color: #F57923;
            margin-top: 50px;
            margin-left: 55px;
            border-top-right-radius: 45px;
        }
        .center{
            float: left;
            width: 50px;
            height: 160px;
            background-color: #fff;
            margin-top: 40px;
            margin-left: 45px;

        }
        .left,
        .right{
            height: 250px;
            background-color: #fff;
            float: left;
        }
        .left{
            width: 250px;
            margin: 100px 50px;
            border-top-right-radius: 65px;
        }
        .right{
            width: 50px;
            margin-top: 100px;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="left">
            <div class="inner">
                <!-- 里面的棕色小方框 -->
                <div class="center">
                    <!-- 里面的白色长方形 -->
                </div>

            </div>
        </div>

        <div class="right">

        </div>
    </div>
</body>
</html>



<!-- 
    思路:
        大致分为 左半边(left)   右半边(right)

        左半边:
            1. 先写最里面的棕色长方形(inner)
            2. 再写白色的长方形(center)
            3. 最后再写白色的大长方形(left)

        右半边:
            一个长方形!

 -->